Valve-spring lifter



Jan. 2, 1923, 1,440,885

J, B. MOYER. VALVE SPRING LIFTER. Fl LED JUNE 10. I921 gwue nfoz:

Patented Jan. 2, lQZE.

JOHN.B. IVEOYER, OF LUCAS, SOUTH DAKOTA.

vALvn-srarne LIFTER.

Application filed June 10, 1921 Serial No. 476,591.

T all whom it may concern:

Be it known that 1, JOHN B. iVTOYER, a citizen of the United States,resioing at Lucas, in the county of Gregory and Stateof South Dakota,have invented new and useful Improvements in Valve-Spring lnrters, ofwhich the following is a specification.

This invention relates to tools used for removing the valves ofinternal-combustion engines for the purpose of grinding, etc. Before thevalve can be removed, it is necessary to take out the pin which holdsthe valve spring seat on the valve stem, this operation necessitatingthat the spring be compressed and its seat lifted clear .of the pin. Thepresent invention has for-its object to provide a simple and veryefficient tool for compressing the valve spring and lifting its seat,and to this end it consists in a novel combination and arrangement ofparts to be hereinater described and claimed,

In order that the invention may be better understood, reference is hadto the accompanying drawing forming a part of this specification, and insaid drawing- Figure l is a side elevation of the tool;

Fig. 2 is similar view showing the jaws of the tool spread, and Fig. 3is a plan view.

Referring specifically to the drawing, 5 and 6 denote a pair ofpivotally connected handles, the former having its forward end forked asshown at 7 to straddle the latter. The pivot pin 8 connecting thehandles passes through the handle 6 and the branches of the forked end 7of the handle 5. To the handle 6 is also pivoted a lever 9, the rear endof which is forked, as shown at 10, to straddle said handle, with thepivot pin 11 passing through the fork branches.

The forward end of the handle 6 has a forked jaw 12 as is usual in toolsof this character, and the forward end of the lever 9 has a similar jaw13. The two jaws 12 and 13 are opposite each other, and when the tool isin position for use, the jaw 13 is above the jaw 12.

A wedge 14 is provided for swinging the lever 9 in a direction to movethe jaw 18 outwardly or away from the jaw 12. This wedge seats slidablybetween the rear end portion of the lever 9 and the opposite side of thehandle 6. From the wedge 14: extends, rearwardly, a shank 15, whichextends between the fork branches 10 and terminates between the forkbranches 7 of the handle 5, to which latter it is pivoted, as shown at16. The pivotal connection 11 between the lever 9 and the handle 6 isforwardly of the pivotal connection 8 between said handle and the handle5. It will therefore be seen that when the handle 5 is swung toward thehandle 6, the wedge 14L is drawn rearwardly to swing the jaw 13 awayfrom the jaw 12.

In use, the tool is placed so as to locate the jaw 13 above the jaw 12.The jaw 12 is placed around the valve push rod to rest on top of theguide boss from which said rod protrudes to engage the bottom end of thevalve stem. This, or any other expedient according to the design of themotor,

provides firm support forthe handle 6.

The handle 5 is swung upwardly to hold the wedge 1 1 advanced and allowthe jaw 18 to come close to the jaw 12 for insertion beneath, the usualvalve spring seat. The handle 5 is now swung down, which draws the wedgerearwardly, whereupon the jaw 13 rises and elevates the valve springseat clear of the cross pin beneath the same, which can now be removedas it is entirely free. The tool is also used in this manner forcompressing the spring and elevating its seat when the cross pin is tobe replaced. lVhen the handle 5 is swung down as described to draw thewedge rearwardly, the lever 9 is locked in elevated position, thisself-locking feature effectually preventing the lever from accidentallyswinging down and releasing the spring to injure the operators fingers.

- The tool is very simple in construction and easy to operate, as wellas efiicient and reliable. The fork branches 7 and 10 between which theshank 15 of the wedge 14 seats form guides for said shank and wedge andeffectually prevent lateral displacement thereof. I

I claim:

1. A valve tool comprising a pair of pivotally connected handles, alever pivoted to one of the handles forwardly of the pivotal connectionbetween the handles, said lever terminating in a jaw, opposite theforward end of the handle to which the lever is pivoted, alongitudinally slidable wedge between the last-mentioned handle and thelever, and an operative connection between the other handle and thewedge.

2. A valve tool comprising a handle, a

second handle having its forward end forked to straddle the handle andpivoted thereto, a lever having its rear end forked to straddle thefirstnientioned lever and pivoted thereto, said lever having ajaw at itsforward end opposite the correspondingend of the first mentioned handle,and 21- longitudinally slidfirst-mentioned able Wedge between the leverand the firstmentioned handle, said wedge having a rear- 10 Wa-rdlyextending shank seating between the branehes'iof the aforementionedforks and connected to the second-mentioned handle. In testimony whereofI aifix my signature.

JOHN B. MOYER.

